Home / 31,528.36-43,529.40-19,607.92

Finding the Fourth Proportional to 31,528.36, 43,529.40 and 19,607.92

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Solution

The fourth proportional to 31,528.36, 43,529.40 and 19,607.92 is: 27,071.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,528.36 : 43,529.40 = 19,607.92 : x
  2. Step 2: Convert to fraction form
    31,528.36/43,529.40 = 19,607.92/x
  3. Step 3: Cross multiply
    31,528.36x = 43,529.40 × 19,607.92
  4. Step 4: Simplify right side
    31,528.36x = 853,520,992.85
  5. Step 5: Solve for x
    x = 853,520,992.85/31,528.36
  6. Step 6: Final answer
    x = 27,071.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.